Expanded-metal lathing.



Unir-E sinne ienfrniifr HENRY l'E'iEllS, Or' BROOKLYN, NEW YORK, ASSHrNOK Ol" ONEdlLi" TO LANCELOT llllSBAlN HEATH, OF TORONTO, CANDA.

EXPANDEDQIETAL LATHING.

epecication of Letters Patent.

Patented Nov. 3, 1908.

Application filed December 16, 1907. Serial No. 408,669.

the Stilte of New York, one o the limited Sintes of America, have invented certain new und useful Improvements in Expanded Metal Luthing', of whif'h lthe following' ie he specification.

My invention relates to improi'einenie in expanded nietnl lnthing, :1nd the ohjeri oil die invenlion is to devise :i forni of inetnl hiihiirn of 'this eines pziriienlnrij/ :ldnptnhle 'o ieiiingg's, which 'will inenre oi the phisler while setting remaining in position, :ind thereby olwinle (he Crnking or falling of pionier. which so eoininonly incident to i phisiei" when applied to the expanded ineini lninhing' now commonly in use.

A.\ further object is i'o :idd strength to the hit-hing' :1nd ineke it rnpnhle oi' resisting the pressure of the trowel in 'that ilJ will noi' recede while i-he plnetering is heink;r done. :ind time insure a fini. plane surface of the phisier Liter he i'irSi' ront has heen applied, in short, make an expanded mend llnihing not i'ioxihle :as the ordinary lnthing now in nee. hui, rigid. strong and dnrziole.

A Siill further object is to prevent 'any linhiliijfv of the :iriion oi rnsi. on ihe iin-like bridging' from Herering slieh ln-iilg'irig` und iihne allow the plaster ioi-rzxrk or fall. und :il the sinne linie so key :md support the plasiering in position :is to ohvizite :my lizahility. if ih@ iinelike hridg'ingl' should he broken. of such plaster felling l A vet fnliher objeil. to nnike the hrihing' stiff' enough, so that the nereseity oi' providing :in expensive euperstrnrtni'i for the lnfhing muy he avoided. f'

To effect jdiese objects l have f-.oneirnried my imlnroved expfuided metal'- hithing' oi sheet mei-,zd preferably eleel having' longitudinnl channel rihe with the channel uppermost, such ribs 'being connected hy fin-like bridging', eneh fin of which is :it the ecnirnl portion `given n. quarter turn find beingr 'preferably arranged in ai depressed or :iron-like form :is hereinafter explained.

Figure 1, is zi perspective view oi :i very small portion of :i ceiling showing the appliention of my invention. Fig. 2, a. section. Fig. 3, is a. section of the lething at righi' angles to that. shown in Fig. 2. Fig'. 4, is n seetioniil detail of the lathing showingiV :i modification of the form shown in Fig.

.in ille drnwinge like lel'i'erey of reference indu-.nie corresponding parte in @zich ligure. llereto'lore in expanded merid lnl'hing' the hey hns heen oit Snell n nature ihzi the inesih being i'orined of inciined-snriizice# hroiighont ferny :i Series ol' longirndinnl line :1nd ln'idg'ing' finis` conneiiingf rhein pmriivnily on edge; :nid thus formi y lilie ii' :my snpporl ioi' the wel. niorlzlr or plnsrer. This reeidi hns heen thiii in polling' np i'he pionier ii would not i'enniin in pimiiion. imi hdi before il hnd iinie lo fiel. il is n'ilh iiie eifel-i. oi' nroiding' lhix :ind other ohieriione. und prodnring :in expended inenl loi-hing' inpnhle of relniniir;v i'he plnsier while setting' :ind :it the .eroine linie pri'idneiir; :in eren eiirinfe limi in r invention is rmrlirnhirly deeigned.

ik in n portion of expnnded inetnl lnihing'. which in provided willi i'lnrhnnnel rihe: .i'i of :in v enii'nhle i'orin of ehzinnel, 'the clinnne oi' course. being uppermost. The poriion is innde in inneh The mine manner ne oiher expanded metall hiihing'` limi is lo Soy :is for ne expanding' the nietnl is concerned, the,

elmnnel rihs A being' (-onnei'ted *iogeilher hy the iin-lilol bridges l, which exlend in seinen'hnl' din germi '["orin hein'een the channel ribs; :in ndirni'ei'l in Figui. i :ind 2. -Euch fin is given n twisty or iin'n :it nhonl'` on angle oi forty-lire degrees `liroin the horizoni'zil :is iiidivided in Fig'. Il, ihe end l of euch iin Where it. is oonneeted to die rlninnel being prontii'nlly on the horizonlnl or iinsh with the enA ernl plnneoi" the lniihing'. ',Vheiinsnre formed h v slitting the metal ol'iliqiiery wiih reference to ihe channels. then expanding and so giving' the strips n qnnxfi'er Yorin nih the Sinne time, lenving openings het-Ween ihein :is si re snit of the expansion. I i

l in ihe plaster. which ie forced np by the irowel ihrongh the lin-like bridges when in the wel, etnie pnsning into the channel-like ribs und being' keyed or retained und snpported in poeition by Such channel ribs from .rib to rib. The bridging fins between are for the moet port at an angle oit' 'forty-live cleg'rees to the `enerol (zi-instruction of the lailn ing' io *forni also n Support for the plaster when in its Wet state. rThe ehnnnel ribs A". however, forni lhe nnrjor' means of retaining the plaster in, position from rib io rin. although. of course. ihe fins Il? being Het :n1 they :iro materially hel p in snpporiinn 4die plaster.

lWhen l'he plawier seis und drie@ die elmnnel rihii1 forni n. very Sirone; rein.forcement for the'laster anglnsuch channel ribs ,being'secure 1n position by-any suitable 'astening i means, strengthen the Whole plastic structure. .Elven should the ends of the lfins become rustecl olf still the plaster would not fall on aecount of keying 0r supporting'the plaster from one rib to the other.

In Figfl, I show the fins A4 with a down- Ward bulge or arch-like sweep, this form hei ing an alternative forni to that shown in Fig.

2, in which the fins A? extend practically straight across. The arch -form of .fins A4 present an increased resistance to the trowel when the-plaster isl applied and-gen- 15 erally strengthen the structure when the plaster-is set and hardened. In addition to thisthe amount of plaster required is materially reduced, as, of course,1t necessarily will he thinner at the crown of thearch.

What claim as my invention is:

A. metal lathing comprising a 'Wehhaving a series of parallel channel ribs with all the channels uppermost and bars connecting` the upper edges of the channel ribs andformed u o, when the web is expanded and as a result or the expansion, at an angle out of the general plane 'of the Web so as to leave intervem ing spaces, and being bent from their ends towards the center so as to form a reverse archlike structure with the bottom substaIr- M tially flush Witl-rthe-bcttonrof the channels and the top forn'ling an open Work channel between the channel'ribs as speciied.

HENRY PETERS.

llitnesses :A

B. BOYD, ll. COnArN. r 

